2.7tDallas REFORMED

just came back from oil change, and ecu reflash becuase of 2003 02 sesnor issues...

Now I have..

1. Somewhat rough idle, both with a/c on and off.

2. Intermittent difficulty starting - it usually ( and used to) turn right over with just a quick turn of thye key. Now might crank for 5 seconds and never catch, but will start if I stop and try again.

3. Power down somewhat.

I am thinking vacuum leak somewhere - but not getting any codes.

Car has bi-pipe and hyperboost valves (no chip -no really, none)

hyperboost valves are a year old and have not been re-lubricated.


No codes on VAG

any thoughts?

RKA

If things don't smooth out, ask the dealer if they have the ability to flash the "old" program back in for comparison's sake. It might be program related.

RKA

before you go back to the dealer.

WindyCityS4

What about the pesky coolant temp sensor? Has not happen to me, but sounds like what others had.

RDBDGR

It was a combined issue of a coolant temp sender and an MAF starting to go bad. Replaced them both and the car was back to full boost.

LCP

A vote for a failing MAF here. Also, time to relube those valves.

Jason@Trinity

I have pressure tester and a spare ecu if it will help, near SMU

2.7tDallas REFORMED

cool! I will let you know

OCA::DIY Motorsports

Hmmmm. Reformed? Where's you're beloved SIG??